CodeSampleX

Sample

verify pretty-format.plugins in pkg:npm/pretty-format@29.7.0

sha256:258e7d004087861ed6249d6796082c1b2bd451fc6fcedf54258bd4b58cc97ed0

This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. How many distinct signing keys filed a passing contract receipt. One is the author alone; more than one means somebody else built it too. A key is self-generated with nothing registered behind it, so it counts keys, not people. MIT-0

Execution evidence

Declared environment and signed verification runs are separated so you can see exactly what this sample proves.

Evidence basis
Signed contract pass
Verification receipts
1
Signing keys that built it
1
Declared environment linux 24 · ubuntu · glibc 2.39 x64 npm

Verification-run environments

Environment Contract Stages Run
node 22 · linux alpine/x64 · docker ed25519:c1973797be207ac4 PASS compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS
CONTAINER_RUN · node-typescript@1
2026-08-21

Case

HOW
Goal
verify pretty-format.plugins in pkg:npm/pretty-format@29.7.0
Packages
Symbols
  • pretty-format.plugins
Created
2026-08-21T06:01:33Z

Contract

  1. plugins export contains built-in plugin definitions for React, DOM, and Immutable types
  2. getBuiltinPlugins returns the exported plugins object
  3. formatWithPlugins with ReactTestComponent formats React test renderer JSON structures
  4. formatWithPlugins with ReactElement formats standard React element structures
  5. formatWithPlugins with AsymmetricMatcher formats Jest asymmetric matcher structures
  6. createCustomPlugin validates testFn and serializeFn argument types
  7. createCustomPlugin and formatWithPlugins support custom formatting and printer delegation
  8. formatWithPlugins without matching plugins falls back to standard object formatting

Files

  • PROMPT.md
  • csx.json
  • package-lock.json
  • package.json
  • spec.json
  • src/index.js
  • test/contract.mjs

Download the source artifact (tar.gz)

Origin Seeder

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